DEMONSTRATIONS

Noun

demonstrations

plural of demonstration

Source: Wiktionary

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DEMONSTRATION

Dem`on*stra"tion, n. Etym: [L. demonstratio: cf. F. démonstration.]

1. The act of demonstrating; an exhibition; proof; especially, proof beyond the possibility of doubt; indubitable evidence, to the senses or reason. Those intervening ideas which serve to show the agreement of any two others are called "proofs;" and where agreement or disagreement is by this means plainly and clearly perceived, it is called demonstration. Locke.

2. An expression, as of the feelings, by outward signs; a manifestation; a show. Did your letters pierce the queen to any demonstration of grief Shak. Loyal demonstrations toward the prince. Prescott.

3. (Anat.)

Definition: The exhibition and explanation of a dissection or other anatomical preparation.

4. (Mil.) a decisive exhibition of force, or a movement indicating an attack.

5. (Logic)

Definition: The act of proving by the syllogistic process, or the proof itself.

6. (Math.)

Definition: A course of reasoning showing that a certain result is a necessary consequence of assumed premises; -- these premises being definitions, axioms, and previously established propositions. Direct, or Positive, demonstration (Logic & Math.), one in which the correct conclusion is the immediate sequence of reasoning from axiomatic or established premises; -- opposed to Indirect, or Negative, demonstration (called also reductio ad absurdum), in which the correct conclusion is an inference from the demonstration that any other hypothesis must be incorrect.

Source: Webster’s Unabridged Dictionary 1913 Edition

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